rust/src/test/ui/proc-macro/proc-macro-attributes.rs

// aux-build:derive-b.rs

#[macro_use]
extern crate derive_b;

#[B]
#[C] //~ ERROR attribute `C` is currently unknown to the compiler
#[B(D)]
#[B(E = "foo")]
#[B(arbitrary tokens)]
#[derive(B)]
struct B;

fn main() {}
Allow proc_macro functions to whitelist specific attributes By using a second attribute `attributes(Bar)` on proc_macro_derive, whitelist any attributes with the name `Bar` in the deriving item. This allows a proc_macro function to use custom attribtues without a custom attribute error or unused attribute lint. 2016-11-08 21:45:02 +10:30			`// aux-build:derive-b.rs`

			`#[macro_use]`
			`extern crate derive_b;`

resolve: Do not block derive helper resolutions on single import resolutions Derive helpers conflict currently conflict with anything else, so if some resolution from a single import appears later, it will result in error anyway 2018-09-24 02:26:26 +03:00			`#[B]`
			#[C] //~ ERROR attribute `C` is currently unknown to the compiler
Allow proc_macro functions to whitelist specific attributes By using a second attribute `attributes(Bar)` on proc_macro_derive, whitelist any attributes with the name `Bar` in the deriving item. This allows a proc_macro function to use custom attribtues without a custom attribute error or unused attribute lint. 2016-11-08 21:45:02 +10:30			`#[B(D)]`
			`#[B(E = "foo")]`
Fix undesirable fallout compile-fail-fulldeps/proc-macro/proc-macro-attributes.rs - resolution change for derive helper attributes with the same name as derive itself run-pass/macro-comma-support.rs - indeterminate resolutions for macros in expression positions ui/issues/issue-49074.rs - diagnostics regression, not enough recovery to report the second error ui/object-lifetime/object-lifetime-default.stderr - unstable diagnostics? 2018-08-17 13:17:39 +03:00			`#[B(arbitrary tokens)]`
Temporarily prohibit proc macro attributes placed after derives ... and also proc macro attributes used together with test/bench. 2018-09-16 17:15:07 +03:00			`#[derive(B)]`
Allow proc_macro functions to whitelist specific attributes By using a second attribute `attributes(Bar)` on proc_macro_derive, whitelist any attributes with the name `Bar` in the deriving item. This allows a proc_macro function to use custom attribtues without a custom attribute error or unused attribute lint. 2016-11-08 21:45:02 +10:30			`struct B;`

			`fn main() {}`